Added preload post build script

scripts/inject-preloads.js

@@ -0,0 +1,42 @@
+import fs from 'fs'
+import path from 'path'
+
+const distDir = path.resolve('dist')
+const manifestPath = path.join(distDir, '.vite/manifest.json')
+const manifest = JSON.parse(fs.readFileSync(manifestPath, 'utf-8'))
+
+const indexPath = path.join(distDir, 'index.html')
+let html = fs.readFileSync(indexPath, 'utf-8')
+
+const filesToPreload = new Set()
+
+function collectFiles(entryKey) {
+  const chunk = manifest[entryKey]
+  if (!chunk) return
+  filesToPreload.add(chunk.file)
+  for (const imp of chunk.imports || []) {
+    if (imp === 'index.html') continue // skip entrypoint
+    const dep = manifest[imp]
+    if (dep) {
+      filesToPreload.add(dep.file)
+      collectFiles(imp) // recurse for transitive deps
+    }
+  }
+}
+
+// automatically find all .vue entries that are dynamic (lazy‑loaded)
+for (const key of Object.keys(manifest)) {
+  if (key.endsWith('.vue') && manifest[key].isDynamicEntry) {
+    collectFiles(key)
+  }
+}
+
+for (const f of filesToPreload) {
+  const tag = `<link rel="modulepreload" href="/${f}">`
+  if (!html.includes(tag)) {
+    html = html.replace('</head>', `  ${tag}\n</head>`)
+  }
+}
+
+fs.writeFileSync(indexPath, html)
+console.log('Preload tags injected')